CVE-2021-25684 - OpenCVE

It was discovered that apport in data/apport did not properly open a report file to prevent hanging reads on a FIFO.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

AV:L/AC:L/Au:N/C:P/I:P/A:P

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Canonical	Apport

Configuration 1 [-]

OR	cpe:2.3:a:canonical:apport::::::::
	cpe:2.3:a:canonical:apport::::::::
	cpe:2.3:a:canonical:apport::::::::
	cpe:2.3:a:canonical:apport::::::::

No data.

References

Link	Providers
http://seclists.org/fulldisclosure/2025/Jun/9
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1912326

History

Mon, 03 Nov 2025 20:30:00 +0000

Type	Values Removed	Values Added
References		http://seclists.org/fulldisclosure/2025/Jun/9

MITRE

Status: PUBLISHED

Assigner: canonical

Published: 2021-06-11T02:20:20.510Z

Updated: 2025-11-03T19:25:41.029Z

Reserved: 2021-01-21T00:00:00.000Z

Link: CVE-2021-25684

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-06-11T03:15:06.977

Modified: 2025-11-03T20:15:45.953

Link: CVE-2021-25684

Redhat

No data.

{"containers": {"cna": {"affected": [{"product": "apport", "vendor": "Canonical", "versions": [{"lessThan": "2.20.1-0ubuntu2.30", "status": "affected", "version": "2.20.1", "versionType": "custom"}, {"lessThan": "2.20.9-0ubuntu7.23", "status": "affected", "version": "2.20.9", "versionType": "custom"}, {"lessThan": "2.20.11-0ubuntu27.16", "status": "affected", "version": "2.20.11-0ubuntu27", "versionType": "custom"}, {"lessThan": "2.20.11-0ubuntu50.5", "status": "affected", "version": "2.20.11-0ubuntu50", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Itai Greenhut"}], "datePublic": "2021-02-02T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "It was discovered that apport in data/apport did not properly open a report file to prevent hanging reads on a FIFO."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-06-11T02:20:20.000Z", "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "shortName": "canonical"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1912326"}], "source": {"advisory": "https://ubuntu.com/security/notices/USN-4720-1", "defect": ["https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1912326"], "discovery": "EXTERNAL"}, "title": "apport can be stalled by reading a FIFO", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "[email protected]", "DATE_PUBLIC": "2021-02-02T00:00:00.000Z", "ID": "CVE-2021-25684", "STATE": "PUBLIC", "TITLE": "apport can be stalled by reading a FIFO"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "apport", "version": {"version_data": [{"version_affected": "<", "version_name": "2.20.1", "version_value": "2.20.1-0ubuntu2.30"}, {"version_affected": "<", "version_name": "2.20.9", "version_value": "2.20.9-0ubuntu7.23"}, {"version_affected": "<", "version_name": "2.20.11-0ubuntu27", "version_value": "2.20.11-0ubuntu27.16"}, {"version_affected": "<", "version_name": "2.20.11-0ubuntu50", "version_value": "2.20.11-0ubuntu50.5"}]}}]}, "vendor_name": "Canonical"}]}}, "credit": [{"lang": "eng", "value": "Itai Greenhut"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "It was discovered that apport in data/apport did not properly open a report file to prevent hanging reads on a FIFO."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-20 Improper Input Validation"}]}]}, "references": {"reference_data": [{"name": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1912326", "refsource": "MISC", "url": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1912326"}]}, "source": {"advisory": "https://ubuntu.com/security/notices/USN-4720-1", "defect": ["https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1912326"], "discovery": "EXTERNAL"}}}, "adp": [{"title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1912326"}, {"url": "http://seclists.org/fulldisclosure/2025/Jun/9"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:25:41.029Z"}}]}, "cveMetadata": {"assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "assignerShortName": "canonical", "cveId": "CVE-2021-25684", "datePublished": "2021-06-11T02:20:20.510Z", "dateReserved": "2021-01-21T00:00:00.000Z", "dateUpdated": "2025-11-03T19:25:41.029Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:canonical:apport:*:*:*:*:*:*:*:*", "matchCriteriaId": "1FDEF7B7-318E-4C9B-AA8B-79157E87B4EF", "versionEndExcluding": "2.20.1-0ubuntu2.30", "versionStartIncluding": "2.20.1-0ubuntu1", "vulnerable": true}, {"criteria": "cpe:2.3:a:canonical:apport:*:*:*:*:*:*:*:*", "matchCriteriaId": "FC812359-24A5-4F7D-ABC6-15DB3062967A", "versionEndExcluding": "2.20.9-0ubuntu7.23", "versionStartIncluding": "2.20.9-0ubuntu1", "vulnerable": true}, {"criteria": "cpe:2.3:a:canonical:apport:*:*:*:*:*:*:*:*", "matchCriteriaId": "194F4E58-D4CB-4B34-8166-858CC0AF7B59", "versionEndExcluding": "2.20.11-0ubuntu27.16", "versionStartIncluding": "2.20.11-0ubuntu27", "vulnerable": true}, {"criteria": "cpe:2.3:a:canonical:apport:*:*:*:*:*:*:*:*", "matchCriteriaId": "5778434C-41A2-4B08-BC76-9203B7FAB094", "versionEndExcluding": "2.20.11-0ubuntu50.5", "versionStartIncluding": "2.20.11-0ubuntu50", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "It was discovered that apport in data/apport did not properly open a report file to prevent hanging reads on a FIFO."}, {"lang": "es", "value": "Se descubri\u00f3 que apport en data/apport no abr\u00eda correctamente un archivo de informes para evitar lecturas colgadas en un FIFO"}], "id": "CVE-2021-25684", "lastModified": "2025-11-03T20:15:45.953", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "[email protected]", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "[email protected]", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "[email protected]", "type": "Primary"}]}, "published": "2021-06-11T03:15:06.977", "references": [{"source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"], "url": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1912326"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://seclists.org/fulldisclosure/2025/Jun/9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1912326"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "[email protected]", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-20"}], "source": "[email protected]", "type": "Primary"}]}